A philosopher, and one of Socrates’s disciples. It is because of Plato that Socrates’s apologia has survived at all, since he is the one who wrote it out and preserved it. One of history’s most important writers, Plato is mentioned twice in Socrates’ defense—once when Socrates lists the men who would gladly testify on his behalf, and once when he explains that Plato—along with Crito, Critobulus, and Apollodorus—has offered to lend him money so he can pay a fine of “thirty minas” as a penalty.